Ramana Maharshi Disciple About Brahman And Jiva

The drop in the ocean is never separate from the ocean even when drop thinks that it is separate from ocean. All spiritual practices are aimed at removing the false notion that you are separate from your ocean of self.

There is no need to unite drop and the ocean, because in the first place they are never separate and cannot be separated. The notion that drop is separate from the ocean is just imaginary and all disciplines which aim at uniting the drop with the ocean are also imaginary.

You are a wave in the ocean and the wave is never separate from the ocean even though it has a name and form unlike the sea. Waves appear and disappear in the ocean only, there is no need to unite the wave to the sea. All that is required is to nullify the false notion that wave is separate from the sea which is not possible because it is
because of the sea, wave has it's existence.

Source: The Book On Self Enquiry By Sri Surya Narayana Raju